BBL manufactures Squirrel Cage Crane and Hoist Duty Motors with Type MC. These motors are generally one frame size smaller than normal. These motors are not limited to cranes and hoists, but can also be used in applications requiring frequent switching.
Standard MC motors are designed for use for S3, S4 or S5 duty with various Cyclic Duration Factors (CDF). These motors can be offered in various types of mountings and are made with standard MA components. i.e. body, end shields etc.
Power Rating : 0.37 KW to 400 KW
Frame : 71 to 355L
Mounting : Foot
Pole : 4, 6, 8
Frequency : 50 or 60 HZ
Duty : S1 To S9
Supply Conditions:- (Voltage & Frequency)
Voltage : 415+- 10%
Frequency : 50Hz +- 5%
Combined Variation : +-10%
Ambient : Motors are designed for ambient temperature 45C
Altitude : Motors are designed for altitude upto 1000m above mean sea level
Re-rating Factors :
The re-rating applicable under different conditions of ambient and altitude are obtained by multiplying factors.
Winding :
The stators are wound with modified polyester enamel covered (Temp class 155C) copper wires and impregnated with class F varnish .However motors wound with dual coated copper wires and VPI can be provided on request.
All motors in 315S frame & above are wound with dual coated winding wire (thermal class 200C) and all impregnated with VPI process.
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